Table 1 Absolute error from initial breath-hold at expiration
Median | Q1–Q3 | p value | |
|---|---|---|---|
Skin surface error without feedback (mm) | 0.79 | 0.47–1.56 | < 0.001 |
Skin surface error feedback (mm) | 0.15 | 0.06–0.30 | |
Eoverall without feedback (mL) | 147 | 76.8–276.8 | < 0.001 |
Eoverall with feedback (mL) | 27.7 | 10.9–51.7 | |
Emen with feedback (mL) | 35.5 | 14.3–52.3 | 0.081 |
Ewomen with feedback (mL) | 23.7 | 8.2–50.4 | |
Esupine without feedback (mL) | 124.6 | 55.7–259.7 | 0.012 |
Eprone without feedback (mL) | 156.3 | 90.9–334.7 | |
Esupine with feedback (mL) | 31.7 | 12.8–59.6 | 0.086 |
Eprone with feedback (mL) | 22.3 | 7.7–47.0 |